EP 0029770 B1 19850424 - CONTROL PANEL COMPRISING CAPACITIVE TIP KEYS
Title (en)
CONTROL PANEL COMPRISING CAPACITIVE TIP KEYS
Publication
Application
Priority
FR 7928101 A 19791114
Abstract (en)
[origin: EP0029770A1] 1. Control panel, keyboard or the like, in particular for a household apparatus comprising a plurality of touch-sensitive keys (1, T1 to T6), each of these keys being capable of initiating a control signal by means of the capacitive disturbance produced by the approach of the finger of a user, and each key comprising at least two electrodes (4, 5 ; 4a, 9, 5a, 9) interconnected by an insulating layer (6, 6A) which forms the accessible side of the key, and a rigid support (2, 3) comprising on the side opposed to the electrodes a screen (2) constituting an equipotential plane for the suppression of parasitic capacities, characterized in that the whole of said insulating layer (6, 6A) and said electrodes (4, 5 ; 4a, 9, 5a, 9) is deposited on an enamelled metal sheet (2, 3) which constitutes both said support imparting the required stiffness to the panel and said screen for suppressing the parasitic capacities.
IPC 1-7
IPC 8 full level
H03K 17/96 (2006.01)
CPC (source: EP)
H03K 17/962 (2013.01); H03K 2217/96023 (2013.01)
Designated contracting state (EPC)
BE DE GB IT NL
DOCDB simple family (publication)
EP 0029770 A1 19810603; EP 0029770 B1 19850424; DE 3070559 D1 19850530; FR 2469287 A1 19810522; FR 2469287 B1 19840420
DOCDB simple family (application)
EP 80401609 A 19801112; DE 3070559 T 19801112; FR 7928101 A 19791114